Mack-Cali Realty Corporation Stockholders' Equity And Mack-Cali Realty, L.P.'s Partners' Capital (Earnings Per Share Tables - Diluted Computation Of EPS) (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended |
9 Months Ended |
Sep. 30, 2021 |
Sep. 30, 2020 |
Sep. 30, 2021 |
Sep. 30, 2020 |
| Stockholders Equity [Line Items] |
|
|
|
|
| Net income (loss) from continuing operations available to common shareholders |
$ (30,593)
|
$ (75,270)
|
$ (133,498)
|
$ (156,860)
|
| Add (deduct): Noncontrolling interests in Operating Partnership |
(2,884)
|
(7,769)
|
(12,858)
|
(15,859)
|
| Add (deduct): Redemption value adjustment of redeemable noncontrolling interests in the Operating Partnership unitholders |
(155)
|
(230)
|
(489)
|
(763)
|
| Income (loss) from continuing operations for diluted earnings per share |
(33,632)
|
(83,269)
|
(146,845)
|
(173,482)
|
| Income (loss) from discontinued operations for diluted earnings per share |
789
|
34,178
|
39,408
|
36,103
|
| Net income (loss) available for diluted earnings per share |
$ (32,843)
|
$ (49,091)
|
$ (107,437)
|
$ (137,379)
|
| Weighted average common shares |
99,975
|
100,307
|
99,870
|
100,235
|
| Income (loss) from continuing operations available to common shareholders |
$ (0.34)
|
$ (0.83)
|
$ (1.47)
|
$ (1.73)
|
| Income (loss) from discontinued operations available to common shareholders |
0.01
|
0.34
|
0.39
|
0.36
|
| Net income (loss) available to common shareholders |
$ (0.33)
|
$ (0.49)
|
$ (1.08)
|
$ (1.37)
|
| Mack-Cali Realty LP [Member] |
|
|
|
|
| Stockholders Equity [Line Items] |
|
|
|
|
| Net income (loss) from continuing operations available to common shareholders |
$ (33,632)
|
$ (83,269)
|
$ (146,845)
|
$ (173,482)
|
| Income (loss) from discontinued operations for diluted earnings per share |
789
|
34,178
|
39,408
|
36,103
|
| Net income (loss) available for diluted earnings per share |
$ (32,843)
|
$ (49,091)
|
$ (107,437)
|
$ (137,379)
|
| Weighted average common unit |
99,975
|
100,307
|
99,870
|
100,235
|
| Income (loss) from continuing operations available to common shareholders |
$ (0.34)
|
$ (0.83)
|
$ (1.47)
|
$ (1.73)
|
| Income (loss) from discontinued operations available to common shareholders |
0.01
|
0.34
|
0.39
|
0.36
|
| Net income (loss) available to common shareholders |
$ (0.33)
|
$ (0.49)
|
$ (1.08)
|
$ (1.37)
|